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Problems with steering when hitting bumps or dips.. Wandering front to the left!! by phils88GT
Started on: 03-15-2024 07:52 AM
Replies: 5 (104 views)
Last post by: Raydar on 03-15-2024 02:43 PM
phils88GT
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Report this Post03-15-2024 07:52 AM Click Here to See the Profile for phils88GTSend a Private Message to phils88GTEdit/Delete MessageReply w/QuoteDirect Link to This Post
Good Morning All!

I am having some weird steering / suspension issues on my 88 GT and need advice please...

When I am going down the road, regardless of speed, although noticeable at high speeds, when I hit a bump, or even better, a quick dip in the road, when the front suspension rebounds and come back up, the front end, seemingly from the left front, feels like it is "wandering" or loose.. kinda unnerving.

Within the past couple of months, I have replaced the upper and lower front BJ's with Rodney Dickman parts, new outer tie rod ends, and shocks (all four corners were utterly shot) with KYB's. After I replaced the aforementioned parts, I had the car aligned and the shop told me that everything was ok, but... my inner tie-rod on the rack was bent slightly. I didn't get a picture of it, and they aligned it anyway, and said it aligned ok.

Could this cause the issues I am feeling? Other than that issue, she rides so much better, and tracks straight at any speed.

I should also mention that this same side, when I was replacing the BJ's, the lower BJ on the left side was actually bent! Someone had obviously in the past tagged a curb or something pretty hard to bend the shaft of a ball joint..

I went on Rock Auto, but could not find any inner tie rods for my 88. Does anyone make these or am I gonna have to get an all new rack? Because if I have to get a rack, I may as well due the convert to power steering...just a thought...

Thanks everyone! 
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theogre
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Report this Post03-15-2024 08:56 AM Click Here to See the Profile for theogreClick Here to visit theogre's HomePageSend a Private Message to theogreEdit/Delete MessageReply w/QuoteDirect Link to This Post
"inner tie-rod on the rack was bent slightly." should Not cause your problem.

Very likely other parts replaced would not do that too except 1 shock/strut was bad.

Bad Control arm & other "rubber" bushings can do this & "look good" standing still. Rubber or outer shell can be bad & outer shell when rusted out doesn't compress the rubber enough to steer right on the street.

Many times need picks, bore scope, etc to "see" more of outer shells because how installed on the car & rust etc hinds a lot of the bushings.

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phils88GT
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Report this Post03-15-2024 09:57 AM Click Here to See the Profile for phils88GTSend a Private Message to phils88GTEdit/Delete MessageReply w/QuoteDirect Link to This Post
I can remove and check the new KYB shocks and make sure they are good. I will say that I have not touched the control arm bushings. If they need to be replaced, should I use poly bushings or just factory OE rubber type?
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1985 Fiero GT
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Report this Post03-15-2024 10:16 AM Click Here to See the Profile for 1985 Fiero GTSend a Private Message to 1985 Fiero GTEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by phils88GT:

I can remove and check the new KYB shocks and make sure they are good. I will say that I have not touched the control arm bushings. If they need to be replaced, should I use poly bushings or just factory OE rubber type?


Use factory rubber unless you are sure you want poly. Apparently it has little to no benefits over factory rubber other then ease of installation, and if not installed right, you will have horrendous squeaking. That said, I have poly that is installed right, and I love it, it gives a very very firm ride, no squeaks, and or course, it's red, that's got to add like like 32hp (1 for every poly thing) along with bumper stickers (I only have 1) hahaha
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cvxjet
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Report this Post03-15-2024 11:12 AM Click Here to See the Profile for cvxjetSend a Private Message to cvxjetEdit/Delete MessageReply w/QuoteDirect Link to This Post
A) check straightness of A-arms, spindles and steering arms.....check all bushings, also.

B) Check your shock absorbers; Gas shocks can lose pressure and do weird things to suspension movement....

(Example of shock weirdness; One of my (Modified for coil-overs) rear struts lost pressure....Driving home on San Mateo bridge (Dead-straight causeway for 7 miles) I noticed when I accelerated the car would pull to one side- and when I cut the throttle, the car would pull to opposite side...Inspecting suspension I finally spotted liquid leaking from one strut)

C) Check your alignment- find a good alignment shop- they should give you an alignment rear-out/diagram....

[This message has been edited by cvxjet (edited 03-15-2024).]

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Raydar
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Report this Post03-15-2024 02:43 PM Click Here to See the Profile for RaydarSend a Private Message to RaydarEdit/Delete MessageReply w/QuoteDirect Link to This Post
The long bolts that go through the lateral and toe links, and the rear knuckle, need to be tight or your car can wander around.
I found it most noticeable when getting on and off the gas, going in a straight line. Accel would pull one way. Decel would pull the other.
I suspect that bumps or dips could have a similar effect.

[This message has been edited by Raydar (edited 03-15-2024).]

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